Eaton� IQ 250 and IQ 260

Electronic Power Meters

Product FocusCompact, digital meterdelivers high-end powermanagement performance

Eaton� IQ 250/260Electronic Power Meters

Typical Applications

• Utility and commercial metering

• Substations, industrial facilities, power generationsites and campuses

• Sub-metering• Load studies and

voltage recording• Analog meter replacement

Features and Benefits

• Measure and display real-time information aboutcritical power parameterswith a sampling rate of 400samples per cycle

• Monitor power utilization and quality with ANSI C12.20accuracy (0.2 percent)

• Verify meter accuracy with KYZ test pulse self-certification capabilities

• Standard Modbus� RTUcommunications

• Available as transducer onlyor with display

• “Prepared for the future” —The meters are designed toaccommodate upgrades andcapabilities not yet conceived

• Integrate into Eaton’s PowerXpert� Architecture for aholistic system-level view

Introduction

With energy costs skyrocketing,you need the ability to verify the accuracy of utility billing and allocation of energy costsamong business units, differentmanufacturing areas or facilities,and tenants. Production equipment and IT systems are vulnerable to power anomalies;therefore you must ensurepower is always up to specifica-tions. If your infrastructure is an established facility, you mayhave addressed these concernsin the past by deploying a variety of analog gauges andmeters — one for volts, one for amperes, and so on, withseparate meters for each measurement. If you’re planningan upgrade or new power infra-structure, no doubt you wouldlike to capitalize on the latesttechnology to improve upon thatcumbersome architecture andits patchwork view.

High-End Capabilities YouWould Not Expect From AnUltra-Compact Meter

Providing the first line ofdefense against costly powerproblems, Eaton’s IQ 250 andIQ 260 electronic power meterscan perform the work of anentire wall of legacy meteringequipment utilizing today’s technology. Eaton’s IQ 250 andIQ 260 meters use 24-bit A/Dconverters that sample at morethan 400 samples per cycle andmeet ANSI C12.20 standards foraccuracy of 0.2 percent. Withsuch high-performance meas-urement capability, thesemeters can be confidently usedfor primary revenue meteringand sub-metering applications.

Eaton’s IQ 250 and IQ 260meters provide direct-readingmetered values for the mostcritical power aspects, such aswatts, watt demand, watt-hours, voltage-amperes (VA), VA-hours, vars, var-hours andpower factor. They have highsampling speed and accuracy.The IQ 260 meter also meas-ures power quality, such as totalharmonic distortion (THD) up tothe 40th order. The IQ 260 alsoprovides configurable limitalarming/control capability of upto eight measured parameters for more sophisticated power management.

Is the utility company billingaccurately? The IQ 250 and IQ260 models provide a traceableKYZ watt-hour test pulse (usedwith a watt-hour pulse recorderor totalizer), so you can verifythe accuracy of your meter, andin turn, the accuracy of billingfrom the utility company and to internal customers.

In addition, Eaton’s IQ 250/260meters are “prepared for thefuture,” providing flexibleinput/output options for accessto future upgrades, some yet to be conceived. The meters are also designed to integrateinto Eaton’s Power XpertArchitecture for end-to-end man-agement of your entire powersystem, giving you a holisticsystem-level view. Further, fieldupgradeability allows you to addfeatures, as you need them.

IQ 250/260 Electronic Power Meter

Mix-and-Match Input/Output Options

Perhaps you need to:• Monitor the status of a piece

of equipment• Activate a warning light

if voltage exceeds a certain threshold

• Trigger a relay contact-closure device

• Transmit power informationdirectly to a process-controlsystem or building management system, or to a legacy system thatdoesn’t use Modbus

For any of these scenarios, IQ250/260 power meters provideoptional input/output (I/O) cardsthat meet the need for eithermanual or automatic operation.

Eaton’s IQ 250 and IQ 260meters provide flexible configuration, with four optionalcards available (analog and digital), which can be combinedin any fashion in two universalcommunication slots. Themeters auto-detect the installedI/O modules, so you can easily add or change I/O cards after installation, giving you the ability to upgrade as needed.

Industry-Standard Communication Protocols

IQ 250 and IQ 260 meters usethe open Modbus protocol. This industry-standard protocolprovides serial communicationswith Eaton or third-party platforms, such as a building management system, powermanagement system, or Eaton’s Power Xpert Gatewayfor Web-based monitoring as part of Eaton’s Power Xpert Architecture.

Integrated with Eaton’s Power Xpert Architecture

IQ 250/260 meters integrateinto Eaton’s Power XpertArchitecture, where meters,gateways and monitoringdevices collaborate to create a unified, centralized view of the end-to-end power and facility’s infrastructure.

When used in this architectureand in conjunction with Eaton’sPower Xpert Gateway, IQ 250and IQ 260 meters can provideWeb-based graphics of current

power conditions. Simply connect your meter to a PowerXpert Gateway to translateModbus-based information from the meter into HTML-based Web pages, accessiblefrom any standard Web browser. With access to accurate, real-time informationfrom IQ 250/260 meters, thePower Xpert Architecture cantransform your power systeminto an integrated, agile system,an easily managed entity thatperforms better and costs less.

Designed for the User

When space is at a premium,yet you need ANSI C12.20 accu-racy, Eaton IQ 250/260 metersfit the bill. These ultra-compactmeters are ideal for electricalequipment assemblies, machinecontrol panels, such as panel-board and switchboard mainsand feeders, low voltage metal-enclosed switchgear feeders and motor control centers. Requiring far less space than other meters withsimilar functionality, IQ 250/260 meters fit into a standard ANSI or IEC cutout on a panelboard or other electricalequipment, and therefore fiteasily into retrofit applications.

Most meters in this class havesmall or dark displays that canbe hard to see, especially from adistance. Eaton’s IQ 250 and IQ260 meters have a large, brightred, three-line LED display, eachline more than a half-inch tall.This display is very easy to read,even if the meter is installed ata height or distance. Using thekeypad and menus on the localdisplay, users can display a variety of electrical system values or program the meter(see Figure 1). The IQ 250 and IQ 260 meters can also beconfigured remotely using Eatonconfiguration software, providedwith the meter.

In addition, the meters are available with or without the display module. You mightchoose to forego the display for applications where there isno need to configure or read the meter locally. This optionreduces costs, especially where many meters will bemonitored from a central operations system.

2 EATON CORPORATION IQ 250/260 Electronic Power Meters

IQ 250/260 Meter (Rear View) With Connection and Communication Ports

FEATURES OF IQ 250/260 ELECTRONIC POWER METERS

Features IQ 250 IQ 260Instrumentation

Current, per Phase X XCurrent Demand X XCalculated Neutral Current X XVoltage, per Phase (L-L, L-N) X XFrequency X X

Power, Energy & DemandReal, Reactive & Apparent Power, Total & per Phase X X(kW, kvar, kVA)Real, Reactive & Apparent Energy, Total & per Phase X X(kWh, kvarh, kVAh)Real, Reactive & Apparent Power Demand X XPower Factor, Total & per Phase X XMin./Max. Readings, I, V, PF, F, THD (IQ260), kW, kvar, kVA X X

Demand Methods Block Interval (Sliding, Fixed) X X

CommunicationsRS-485 X XKYZ Output X XModbus RTU X XModbus ASCII X XDNP 3.0 X X

I/O2 Digital In / 2 Digital Out 1 Opt. Opt.4 Digital In / 4 KYZ Out Opt. Opt.4 Analog Output (4 – 20 mA) 2 Opt. Opt.4 Analog Output (0 – 1 mA) Opt. Opt.

Power Quality AnalysisTotal Harmonic Distortion (THD) Voltage and Current per Phase X

Alarming Set Point Driven Alarm X

1 Digital Out with the IQ 250 requires external command.

2 Requires external power supply.

IQ 250 M A 6 5 1 1 0

I/O Slot 2

0 = None1 = 2 Relay Outputs/2 Status Inputs2 = 4 KYZ Pulses/4 Status Inputs3 = 4 Analog Outputs: 0 – 1 mA 4 = 4 Analog Outputs: 4 – 20 mA

Model Series

250 = Power260 = Power Quality

I/O Slot 1

0 = None1 = 2 Relay Outputs/2 Status Inputs2 = 4 KYZ Pulses/4 Status Inputs3 = 4 Analog Outputs: 0 – 1 mA 4 = 4 Analog Outputs: 4 – 20 mA

Meter Type

M = Meter (with integral display)T = Transducer Only (no display)

Frequency

5 = 50 Hz System6 = 60 Hz System

Current Input

1 = 1 Amp Secondary5 = 5 Amp Secondary

Power Supply

1 = 90 – 265 Vac/dc4 = 24 – 48 Vdc

The Reading Type indi-cator shows what typeof information you’reviewing, such as mini-mum, maximum or%THD and above or below limits exceeded (IQ 260).

The ParameterDesignator shows the parameter beingdisplayed, such as volts, amps, frequency, power or energy.

The watt-hour testpulse is used toverify the accuracyof the meter.

These lights showhow loaded the circuit is, from 10 to 100 percent, relative to the programmed maximum.

The scaling factorshows the scale ofthe displayed value,which variesbetween low- and high-voltageapplications.

Figure 1 — IQ 250/260 Meter Faceplate Display

3EATON CORPORATION IQ 250/260 Electronic Power Meters

Expandable I/O Componentry

Ordering Information

IQ 250/260 METER

IQ 250/260 Meter Dimensions — Face and Side Views

4.85 (123.2)

4.85(123.2)

IQ 250/260M Side IQ 250/260T Side

4.97 (126.2)

4.20 (106.7)

5.02(127.5)

3.25 (82.6) 3.25 (82.6)

3.54(89.9)

4.93 (125.2)

4.16 (105.7)

IQ 250/260 Face

IQ 250/260 Meter Dimensions

Configurable AutoScroll to display allkey values in turnor fixed display.

IQ 250/260 Electronic Power Meter Technical Information

ISOLATION

All inputs and outputs are galvanically isolated to 2500 volts.

ENVIRONMENTAL RATINGS

Operating Temperature -20ºC to +70°CStorage Temperature -20ºC to +70°COperating Humidity To 95% RH Non-condensingFaceplate Rating NEMA� 12

Water-resistant Mounting Gasket Included

SENSING METHOD

Voltage, Current True RMSPower Sampling at Over 400 Samples per

Cycle On All ChannelsHarmonics Resolution 40th Order

UPDATE RATE

Watts, Var and VA 100 msec at 60 HzAll Other Parameters 1 Second at 60 Hz

POWER SUPPLY

AC/DC Voltage Option 90 – 265 Vac at 50/60 Hz or 100 – 370 Vdc, Universal AC/DC Supply

DC Voltage Option 18 – 60 VdcBurden 10 VA Max.

STANDARD COMMUNICATIONS FORMAT

Connection Type RS-485 (Through Back Plate)Com Port Baud Rate 9600 – 57,600 BaudsCom Port Address 01 – 247Data Format 8-Bit, No ParityProtocols Modbus ASCII, RTU or DNP 3.0

KYZ PULSE

Contacts 1 Form AOn Resistance, Max. 35 OhmsPeak Switching Voltage 350 VdcContinuous Load Current 120 mAPeak Load Current 350 mA (10 ms)Off-state Leakage Current at 350 Vdc 1 uAOpto-isolation 3750 Vac

DIMENSIONS AND SHIPPING

Weight 2 lbs.Basic Unit H 5.00 x W 4.90 x L 5.00 InchesIQ 250/260 Mounts in 92 mm DIN and ANSI

C39.1 Round Cut-outsShipping Container Dimensions 6-Inch CubeTolerance +/-0.1 Inches (2.54 mm)

COMPLIANCE

IEC 687 0.2% AccuracyANSI C12.20 0.2% Accuracy ANSI C62.41 BurstUL�/cUL� Electrical & Electronic

Measuring & Test Equipment 22CZ

VOLTAGE INPUTS

RangeLine-to-Neutral 20 – 576 VacLine-to-Line 0 – 721 Vac

Programmable Voltage Range Full Scale to Any PT RatioSupported Systems 3 Element Wye, 2.5 Element Wye,

2 Element Delta, 4-Wire Delta SystemsInput Impedance 1 Meg Ohm/Phase Burden 0.36 VA/Phase Max. at 600 V;

0.014 VA at 120 VoltsConnection 7-Pin 0.400-Inch Pluggable Terminal

Block, AWG #12 – 26 (0.129 – 3.31 mm2)

Eaton CorporationElectrical Group1000 Cherrington ParkwayMoon Township, PA 15108United States877-ETN-CARE (877-386-2273)Eaton.com

© 2008 Eaton CorporationAll Rights ReservedPrinted in USAPublication No. PA02601007E / Z7269June 2008

Eaton and Power Xpert are registered trademarks of Eaton Corporation. NEMA is theregistered trademark and service mark of theNational Electrical Manufacturers Association.UL and cUL are registered trademarks ofUnderwriters Laboratories Inc. Modbus is a registered trademark of Modicon, a division of Schneider Electric Industries SA.

CURRENT INPUTS

Class 10 5 Amp Nominal, 10 Amp Max. Class 2 1 Amp Nominal, 2 Amp Max.Fault Current Withstand

100 Amps for: 10 Seconds300 Amps for: 3 Seconds500 Amps for: 1 Second

Continuous Current Withstand 20 Amps for Screw Terminated or Pass-through Connections

Programmable Current Full Scale to Any CT RatioBurden 0.005 VA per Phase Max. at 11 AmpsPickup Current 0.1% of Nominal

Class 10 5 mAClass 2 1 mA

ConnectionsPass-through Wire Gauge Dimension 0.177 Inches (4.5 mm)Quick Connect 0.25-Inch Male Tab

Note: Features and specifications listed in thisdocument are subject to change without noticeand represent the maximum capabilities of thesoftware and products with all options installed.This is not a complete feature list. Features andfunctionality may vary depending on selectedoptions.